The sun, is also variable over a long term: its heat output goes up and down in cycles, the latest trend being downward.
太阳在长期内也是变化的：它的热量输出在周期中有上升，也有下降，最近的趋势是下降。
It starts from the Beginning of Spring and ends with the Greater Cold, moving in cycles.
它从立春开始，以大寒结束，循环往复。
Some experts believe sleepiness comes in cycles.
一些专家认为困意具有周期性。
Qi and blood in the meridians circulate in cycles.
经脉中的气血运行是循环贯注的，如环无端。
A mans life runs in cycles just the same as stocks.
一个人的生命在一个循环中运行就象股票一样。
But the markets run in cycles and at some point, they will be back in favor.
但是市场运行都有周期，将来的某天，共管公寓会重新得到人们的喜爱。
Therefore, in cycles there must be a lesser, a greater and intermediate cycle, or.
因此，在众多循环中一定要有次要的，主要的和中间过渡状态的循环。
That's just the way the game is, but it moves in cycles, and it will surely go around again.
比赛就是这样，但任何事情都是个循环。没准什么时候情况就又变了。
The number of spots on its surface has waxed and waned in cycles that last, on average, 11 years.
太阳表面的黑子数在其一般延续11年的活动周期内增增减减。
The ground floor may change from home office to granny flat and back again in cycles of twenty years.
地面层也许会由办公室改成祖母的公寓，并以二十年一个循环再次改回原状。
Life happens in cycles, discover the life cycles of your partner; make sure you're excited about those cycles.
生活是循环进行的，去发现你的伴侣的生活周期；你要务必对那些生活周期兴奋不已。
Our minds work in cycles of activity and downtime designed to keep us alert and responsive to our surroundings.
为了使我们能够对周围的环境保持警醒并做出响应，我们的大脑也要有活动与休整的周期。
Run: You can't run for an extended period of time. Attempts to run and rest in cycles effectively work out to a hustle.
奔跑：你不能长时间奔跑。奔跑一会休息一会的效果与小跑相同。
Consolidation therapy is usually given in cycles for 4 to 6 months. Maintenance therapy is usually given for about 2 years.
巩固治疗的疗程通常持续4至6个月，维持治疗则通常持续2年。
Sleep is part of a person's daily activity cycle. There are several different stages of sleep, and they too occur in cycles.
睡眠是人每天日常活动循环的一部分。人的睡眠分几个阶段，而这些阶段也是循环发生的。
Additionally the sales go in cycles, and you should be able to tell how you will need to buy until the item goes on sale again.
另外，商品打折是有周期的，通过价格单你可以知道在下一个打折季节时购买物品。
The speed of a computer is usually expressed in cycles per second. Typical machines operate at100 to200 megahertz or100 million to200 million cycles per second.
计算机的速度通常用每秒(行)(钟)期来表示。典型的机器运转在100到200兆赫或者说每秒100到200兆周期。
Because the midpoint of the Medieval Warm Period was about 850, an extension of Bond's cycles would place the midpoint of the next warm interval in the twenty-fourth century.
由于中世纪温暖期的中点约为850年，因此邦德循环的延长将使下一个温暖间隔的中点出现在二十四世纪。
Remarkably, despite significant differences in habitat and behavior, many species of lepidoptera have population cycles of similar length, between eight and eleven years.
值得注意的是，尽管鳞翅目昆虫在栖息地和行为上存在显著差异，但许多种类的鳞翅目昆虫的种群周期相似，在8到11年之间。
If their population is tracked through time, it will be seen to be particularly unstable—soaring and plummeting in irregular cycles.
如果对它们的数量进行时间记录，就会发现它是很不稳定的——以不规则的周期急剧上升下降。
That's great, now you should know that this job candidate is interested in the life cycles in the forest.
太好了，现在你应该知道这个求职者对森林的生命周期很感兴趣。
Bond hypothesized that the alternating cycles might be evidence of changes in ocean-water circulation and therefore in Earth's climate.
邦德推测，这种交替循环可能是海-水间循环变化的证据，因此也会影响地球的气候。
The areas that are now desert were, like all arid regions, very susceptible to cycles of higher and lower levels of rainfall, resulting in major, sudden changes in distributions of plants and animals.
那片现在是沙漠的地区和所有干旱地区一样，对降雨量相对更大或更小的周期极为敏感，因此那里的动植物分布发生了巨大且迅速的变化。
Timber owners have often produced lumber at a loss and survived these down cycles in demand.
木场主经常赔本生产木料，以便在需求低迷期挺过来。
It assures that the astronomical cycles have been in existence for billions of years.
这使人们确信天文周期已经存在了数十亿年。
It assures that the astronomical cycles have been in existence for billions of years.
这使人们确信天文周期已经存在了数十亿年。
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